Cathepsin B Protein (CTSB) (His tag)

Catalog No. ABIN7321072

Product Details

Target: Cathepsin B (CTSB)

Protein Type: Recombinant

Origin: Rat

Source: HEK-293 Cells

Purification tag / Conjugate: This Cathepsin B protein is labelled with His tag.

Purpose: Recombinant Rat Cathepsin B/CTSB Protein (His Tag)

Sequence: Met1-Phe339

Characteristics: A DNA sequence encoding the rat Ctsb (NP_072119.2) (Met1-Phe339) was expressed with a polyhistidine tag at the C-terminus.

Purity: > 95 % as determined by SDS-PAGE

Endotoxin Level: < 1.0 EU per μg protein as determined by the LAL method.

Application Details

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: Please refer to the printed manual for detailed information.

Buffer: Lyophilized from sterile 25 mM Tris, 150 mM NaCl, pH 7.5

Storage: 4 °C,-20 °C,-80 °C

Storage Comment: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Target Details

Target: Cathepsin B (CTSB)

Alternative Name: Cathepsin B/CTSB (CTSB Products)

Synonyms: APPS Protein, CPSB Protein, CB Protein, apps Protein, cpsb Protein, LOC692390 Protein, CTSB Protein, cathepsin B Protein, cathepsin B S homeolog Protein, CTSB Protein, Ctsb Protein, ctsb.S Protein, LOC692390 Protein

Background:

Background: Cathepsin B is a papain-family cysteine protease that is normally located in lysosomes, where it is involved in the turnover of proteins and plays various roles in maintaining the normal metabolism of cells. This protease has been implicated in pathological conditions, e.g., tumor progression and arthritis. In disease conditions, increases in the expression of cathepsin B occur at both the gene and protein levels. Cathepsin B is synthesized as a preproenzyme and the primary pathways for its normal trafficking to the lysosome utilize mannose 6-phosphate receptors (MPRs). Mature cathepsin B has the ability to degrade several extracellular matrix components at both neutral and acidic pH and has been implicated in the progression of several human and rodent tumors progression and arthritis. Cathepsin B expression is increased in many human cancers at the mRNA, protein and activity levels. It is also frequently overexpressed in premalignant lesions, an observation that associates this protease with local invasive stages of cancer. Increased expression of cathepsin B in primary cancers, and especially in preneoplastic lesions, suggests that this enzyme might have pro-apoptotic features. Active cathepsin B is also secreted from tumours, a mechanism likely to be facilitated by lysosomal exocytosis or extracellular processing by surface activators. Cathepsin B is localized to caveolae on the tumour surface, where binding to the annexin II heterotetramer occurs. Thus CTSB is suggested as a tumor marker. Additionally, Cathepsin B can degrade extracellular matrix proteins, such as collagen IV and laminin, and can activate the precursor form of urokinase plasminogen activator (uPA), perhaps thereby initiating an extracellular proteolytic cascade.

Synonym: Cathepsin B,CTSB

Molecular Weight: 37.1 kDa

NCBI Accession: NP_072119

Pathways: Activation of Innate immune Response, Toll-Like Receptors Cascades